Katy Perry Rocks Black Bikini For Ice Bucket Challenge - Watch Now!

“Thank you @thestevetisch @aw & @hellogiggles for nominating me for the ALS #theicebucketchallenge I now nominate @madonna (ALSO SORRY THIS IS SO LOUD & ANNOYING) 💦,” the 29-year-old singer shared with the video on Instagram after she was nominated by close pal Allison Williams. Check out Allison‘s video after the cut!